Finding the Fourth Proportional to 528.31, 792.58 and 163.09
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Solution
The fourth proportional to 528.31, 792.58 and 163.09 is: 244.66
Step by Step Solution
- Step 1: Write the proportion equation
528.31 : 792.58 = 163.09 : x - Step 2: Convert to fraction form
528.31/792.58 = 163.09/x - Step 3: Cross multiply
528.31x = 792.58 × 163.09 - Step 4: Simplify right side
528.31x = 129,257.09 - Step 5: Solve for x
x = 129,257.09/528.31 - Step 6: Final answer
x = 244.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.